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Sizzler: Jennifer Lopez turned up the heat in a skintight beige macrame mini-dress on the set of American Idol on Wednesday

The frock featured some modest touches too as seen in the high neckline and the long sleeves.

J-Lo added shining stilettos with delicate ankle straps, while her waist-length hair tumbled down her back and over her shoulders in blonde-streaked, brown waves.

Her face was bronzed and made-up to stand out on camera with heavy shadow, dark eye liner, flattering foundation and swipes of blush to both cheeks, along with a pale and shimmery lip gloss.

Starry turn: The 45-year-old singer was heavily made-up for her close-ups on camera

Life of J-Lo: The stunning star was accompanied by a security detail and style entourage

Strike a pose: Jennifer exuded sultriness as she posed for photo opportunities on a platform ahead of the American Idol taping

Before the show, Jennifer posed for some photo opportunities.

On Tuesday, Jennifer shared her excitement over snaring a new deal to develop the film Mothers I’d Like To… with Universal Studios.

‘#Exciting #StayTuned,’ she wrote.

Through her production company, the singer will star and serve as producer on the comedy alongside partners Elaine Goldsmith-Thomas and Benny Medina.

Oo la la! Jennifer showed off her toned back via a giant circular cut-out

Mother-of-two: J-Lo is mom to seven-year-old twins Max and Emme from her previous marriage to Marc Anthony

Hot mana: Jennifer has sealed her status as MILF with a new deal to star and produce the comedy Mothers I’d Like To…. she excitedly confirmed on Tuesday

The plot has been described as a ‘Bridesmaids meets First Wives Club,’ according to Deadline.com.

J-Lo’s previous flick, The Boy Next Door, was a success thanks to moviegoers and took in $48 million at the box office worldwide.

That movie cast Jennifer as a newly divorced mom whose affair with her neighbour, a much younger man, turns dangerously obsessive.

In real life, J-Lo is mom to seven-year-old twins Max and Emme from her previous marriage to Marc Anthony.

She’s also reignited her romance with her own much younger man, 28-year-old Casper Smart.

Box office winner: The actress’ previous film The Boy Next Door opposite Ryan Guzman took in $48 million worldwide at the box office